SOPs from EUCAST

• SOP 1.5 Setting breakpoints for new antimicrobial agents (9 May, 2025) 
  Previous versions 1.1; 1.2; 1.3; 1.4 
• SOP 2.5 Harmonising breakpoints for existing antimicrobial agents (12 May, 2025)
  Previous versions: 2.1 2.2; 2.3; 2.4
• SOP 3.4 Review and revision of breakpoints (6 May, 2025) 
  Previous versions, 3.1; 3.2; 3.3 
• SOP 4.7 EUCAST Committees and subcommittees​​​​ (12 May, 2025)
  Previous versions: 4.0; 4.1; 4.2; 4.3; 4.4; 4.5; 4.6
• SOP 5.4 EUCAST and the interaction with NACs (7 May, 2025)
  Previous versions: 5.0; 5.1; 5.2 ; 5.3
• SOP 6.4 Organisation and maintenance of EUCAST websites (6 May, 2025)
  Previous versions 6.0; 6.1; 6.2; 6.3
• SOP 7.4 Preparation and handling of EUCAST minutes (6 May, 2025)
  Previous versions: 7.0, 7.1; 7.2; 7.3 
• SOP 8.4 Format and updates of documents (6 May, 2025)
  Previous versions: 8.0; 8.1; 8.2; 8.3
• SOP 9.4 Procedure for establishing zone diameter breakpoints and quality control criteria for new antimicrobial agents (10 July, 2025)
  Previous versions 9.0; 9.1; 9.2; 9.3
• SOP 10.2 MIC distributions and the setting of epidemiological cut-off (ECOFF)
  values (10.2 from 2021, re-affirmed 12 May 2025) 
  Previous versions: 10.0; 10.1
• SOP 11.1 Procedure for optimizing disk contents (potencies) for disk diffusion testing of
  antimicrobial agents using harmonized CLSI and EUCAST criteria (21 January, 2025) 
  Previous version SOP 11.0 (13 July, 2020).
• SOP 12.1 Process for submitting disk content (potency) data for joint CLSI and 
  EUCAST working group review and approval (11 March 2025).
  Previous version SOP 12.0, 21 September, 2023.
• SOP 13.0 Procedure for confirming the acceptability of Mueller-Hinton agar sources for
  subsequent use in CLSI and/or EUCAST studies to establish disk diffusion
  quality control ranges (21 September, 2023, re-affirmed 13 April, 2025).
  • Excel template for registering trial data (22 August, 2023)

Questions and comments on SOPs